This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
| n | a(n) |
|---|---|
| 5 | 1 |
| 6 | 4 |
| 7 | 12 |
| 8 | 30 |
| 9 | 72 |
| 10 | 166 |
| 11 | 375 |
| 12 | 828 |
| 13 | 1802 |
| 14 | 3872 |
| 15 | 8243 |
| 16 | 17404 |
| 17 | 36501 |
| 18 | 76104 |
| 19 | 157888 |
| 20 | 326126 |
| 21 | 671054 |
| 22 | 1376090 |
| 23 | 2813303 |
| 24 | 5735864 |
| 25 | 11665683 |
| 26 | 23672756 |
| 27 | 47940341 |
| 28 | 96904034 |
| 29 | 195540645 |
| 30 | 393953334 |
| 31 | 792531849 |
| 32 | 1592204570 |
| 33 | 3194717138 |
| 34 | 6402570594 |
| 35 | 12817347502 |
| 36 | 25632678412 |